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18 Cards in this Set
- Front
- Back
Describe Anabaena
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-cocci in chains
-gram stains both seen -4 microns -found in colonies |
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Describe Bacillus anthracis
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-bacilli in chains
-Gram + -from environment and animals +endospore forming, toxin producing rod, causative agent of anthrax, agent of bioterrorism |
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Describe Bacillus cereus
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-bacilli in chains
-gram + -from environment +has bright yellow, water-soluble pigment, is an endospore former, ubiquitous and common lab plate contaminant, causes gastroenteritis, food poisoning with warmed over food such as rice, toxin producer |
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Describe Bacillus subtilis
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-bacilli
-Gram + -aerobe -forms large, beta-hemolytic clonies on BAP, is an endospore former, is ubiquitous and common lab plate contaminant, is opportunistic pathogen |
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Describe Lactobacillus sp.
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-bacilli
-Gram + -from human, animal, and environment -normal oral, intestinal, and vaginal flora; helps keep foreign microbes in check |
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Describe Enterococcus faecalis.
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-cocci in chains
-Gram + -from animal and human -catalase negative -alpha hemolytic -no growth on MAC plate -white growth on TSA -formorly thought of as a streptococcal microbe -normal fecal flora, opportunistic as well as a nosocomial pathogen, associated with VRE problems, used as indicator of animal fecal contamination in water |
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Describe Enterococcus faecium.
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-cocci in chains
-Gram + -from animals and humans -catalase negative -formorly thought of as Streptococcal microbe -normal fecal flora, opportunistic as well as a nosocomial pathogen, associated with VRE problmes, used as indicator of animal fecal contamination in water |
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What does VRE stand for?
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-Vancomycin Resistant Enterococci
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Describe Escheriachia coli.
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-Bacilli
-Gram - -Facultative anaerobe -from human and animals -no pigments -gamma hemolysis -Lactose + (magenta colony, opaque pink medium) on MAC -fermenter for O/F Leifson -grown throughout thio. -normal fecal flora -most common cause of community acquired UTI infections in females |
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Describe the E coli strain O157:H7.
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-Bacilli also
-Gram - also -special strain of E. coli with additional genetic material which codes for toxins; has been involved in serious outbreaks of feed poisoning, usually associated with beef |
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Describe Micrococcus luteus
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-cocci in tetrads
-Gram + -1.0 micrometer -microaerophile -polar Orange-Dry water-insoluble pigment -Gamma hemolysis -no growth on MAC plate -inert for O/F Purple -very purple! |
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Describe Pseudomonas aeruginosa
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-Bacilli, Gram -
-from hum, an, and environ -has grape-like smell -produces pyocyanin (blue green water-soluble pigment) -beta hemolysis -beige medium and colonies on MAC (lactose not fermented) -oxidizer for O/F Leifson -ubiquitous and especially associated with water -serious opportunistic and nosocomial pathogen -associated with wounds (especially burns) and pneumonia |
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Describe Serratia marcescens.
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-Bacilli
-Gram - -from human, animal, and environmet -produces bright red water-insoluble pigment; ubiquitous and found as opportunistic pathogen |
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Describe Staphylococcus aureus.
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-cocci in clusters (but found as individuals)
-Gram +, from humans -buttercup gold water insoluble -no growth on MAC plate -fermenter for O/F Purple -catalase +; AKA: Coagulase Positive Staphylococci -may be beta hemolytic -causes impetigo and wound infections, serious nosocomial pathogen, causes food poisoning through toxin production, may be resistant to several antimicrobials |
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Describe Streptococcus pneumoniae
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-diplococci in chains, lancet shaped
-Gram + -catalase negative -alpha hemolytic on BAP -may be normal throat flora, major cause of community acquired pneumonia where sputum appears rut colored, recently associated with neonatal sepsis |
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Describe Streptococcus pyogenes.
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-Cocci in chains
-Gram + -from humans and animals -AKA Group A streptococci -catalase negative -beta hemolytic -causes pharyngitis, strep thoat, impetigo, rheumatic fever, has been described as the flesh eating bacterium |
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Describe Klebsiella pneumoniae.
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-bacilli
-Gram - -from human and environment -among normal fecal flora -possesses a very large capsule -causes pneumonia where the sputum appears like "current-jelly" |
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Describe bacteroides fragilis.
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-bacilli
-Gram - -from humans and animals -normal fecal flora and may be most numerous bacteria found in feces -opportunistic pathogen -anaerobe for thio (though we found it to be aerobic) |